The effects of surface area to solution volume on waste glass leaching

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · Nucl. Technol.; (United States)

OSTI ID:5462811

Pederson, L R; Buckwalter, C Q; McVay, G L

Silicon solubility limitations appear to control the rate of corrosion of a complex simulated nuclear waste glass at relatively high values of the glass surface area to solution volume ratio (SA/V). Undersaturated glass components such as sodium and boron were affected by SA/V in a manner similar to silicon. Under relatively low SA/V conditions, glass corrosion was unaffected by changes in the SA/V ratio. Congruent dissolution was never observed, in contrast to previous results for simple and certain complex silicate glasses. Increases in the SA/V value may be a viable method for performing accelerated leach resistance testing of nuclear waste forms.

• Research Organization: Pacific Northwest Laboratory, P.O. Box 999, Richland, Washington 99352
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5462811
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 62:2; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
360604 -- Materials-- Corrosion
Erosion
& Degradation
ALKALI METALS
BORON
BOROSILICATE GLASS
CORROSION RESISTANCE
DISPERSIONS
DISSOLUTION
ELEMENTS
GLASS
HIGH-LEVEL RADIOACTIVE WASTES
LEACHING
MATERIALS
METALS
MIXTURES
QUANTITY RATIO
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SATURATION
SEMIMETALS
SEPARATION PROCESSES
SILICON
SODIUM
SOLUBILITY
SOLUTIONS
SURFACE AREA
SURFACE PROPERTIES
VOLUME
WASTES